<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <script src="./js/vue.js"></script>


    <!--  这个不能用 -->
    <!-- <script src="https://cdn.jsdelivr.net/npm/vue"></script> -->


    <!-- <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> -->
</head>

<body>

    <div id="app">
        <h1>{{msg}}</h1>
    </div>

    <script>
        let vm = new Vue({
            el: '#app',
            data: {
                msg: 'hello vue '
            }
        })
    </script>
</body>

</html>